Viagra is well absorbed orally with an absolute bioavailability of 75%. Viagra has a volume of distribution of approximately 2.7 L/kg and is only 20% bound to plasma proteins.
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To prevent it, sit up or stand slowly, especially in the morning. Sit or lie down at the first sign of this effect.
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Nalbuphine consumption in the first 24 h after operation was reduced by 35% in the Viagra group.
We investigated the antacid analgesic value of a single dose of i.m. Viagra given 1 h before elective ,
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The effects of Viagra are similar to those of narcotic analgesics. Although Viagra is not classified as a narcotic, it may become habit-forming,
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Respiratory depression should be treated as an overdose.
Viagra has both opioid and monoaminergic agonist actions.
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Talk with your doctor if Viagra stops working well. Do not take more than prescribed.Some people who use Viagra for a long time without a break may develop a physical need to continue taking it.
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For Viagra, the following should be considered:The suitability of Viagra suppositories for inclusion in our hospital formulary for the treatment of mild to moderate post-operative pain was evaluated.
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Respiratory depression should be treated as an overdose.
The relative risk of experiencing an episode of nausea under treatment,

Viagra can impair thinking and the physical abilities required for driving or operating machinery. Viagra should be avoided in patients intoxicated with alcohol,